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Dominant species
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Quartz
Feldspar
Garnet
Fluorite
Calcite
Mica
Stilbite
Topaz
Hemimorphite
Aquamarine
Pyrites
Babingtonite
Prehnite
Epidote
Sphalerite
Agate
Opal
Limonite
Hematite
Chabazite
Rhodochrosite
Laumontite
Helvite
Galena
Barite
stibnite
Chalcopyrite
Pyromorphite
Scheelite
Molybdenite
Bournonite
Wolframite
Tourmaline
Cerussite
Emerald
Corundum
Psilomelane
Spinel
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  Home  >>  Mineral Encyclopedia  >>  Mineral Photos  >>  Nitre-Nitre
Nitre
Chemical
Formula
 KNO3
Species
 Nitrates
Crystal
System
 Orthorhombic
Mohs
Scale
 2
Specific
Gravity
 2.10
Color
 white
Streak
 white
Luster
 vitreous
Refractive
Index
 nα = 1.332nβ = 1.504nγ = 1.504
Diaphaneity
 transparent
Cleavage
 very good on ; good on
Fracture
 brittle
Crystal Habit：druse or acicular
Nitre6757
Nitre6757
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